Metal decking



March 1,1932. w, RAMMAGE 7 1,847,980

' METAL DECKING Original Filed Nov. 2, 1928 Diwali ,4 W Pal/H1 "10/676.

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Patented Mar. 1, 1932 .Ummsms An'r'HUR WILLIA RAM MnG-E OFLWANDSWCRTH,"LONDON, ENGLAND; ASSIGNOR 'ro -izooeH nncxme :cnvu'rnn, or LONDON, n vennnnn BRITISH COMPANY PA ENT/OFFICE- I METAL nEcKINe Original application filed November 2, 1928, Serial No. 316,848, and in Great Britain November 22, Divided. and this application 'fi1edApri1 2 0, 19 2 9. Serial No. 356,850.

This invention relates to metal decking-"or trough flooring .for bridges, piers, warehouses, roofs,subways, tunnels and the like hereinafter referred toas metal decking.

According to the present invention the metal decking comprises a number of trough sections each having oppositely inclined webs terminating at one endof the section in a vertical portion and atthe other end ina contiguous sections.

The construction of the metal decking from the sections preferably proceeds from the upper surface thereof from which point of vantage all riveting, bolting or welding can take place. Undersuch conditions no understaging is necessary andtools and constructingplant can be carried forward on the upper surface of the decking as construction thereof proceeds,.but it will :be'seen that byturning:

facilitates convenient packing together of the sections when not connected. Fig. 2 shows a section having several corrugations and constructed from one plate.

Fig. 3 is an alternative construction of section to that shown in Fig. 1 and is more particularly adapted for heavier construc-,

tions of sections, and

Fig. 4.- shows reinforcing or strengthening. --;-plates attached to a section.

Throughout the views similar parts are marked with corresponding letters of reference.

In medium depth deckingas shown in Fig. 1 the section used has-a flat bottom or table horizontal portion and right-angled anglepieces secured to the innerrside of the vertical portions and to the overhanging portions of is a diagrammatic View of one cii-' structionf ofjtrough sect on of a shape which a withtwo sloping webs or sides 5, a horizontalportion or flat top or table 0, and a right angled angle piece 7'. Various sections of this construction'are adapted to be riveted, bolted or welded together as shown in Flg. 1 by the right angled angle pieces f to form a'decki'ng and such sections can all be riveted, bolted or welded from the upper surface of the decking as workproceedsand the sections are placed in position to be riveted, bolted or Welded together. Before erection or after being taken apart for transportation the various sections may, by reason of their shape, be easily packed, one within the other, which saves a great amount of space and c5 facilitates: transportation. Instead of one section being formedfrom one plate as shown in Fig. 1,' a.series of corrugations of a cross sectional configuration having each corrugas tion somewhatsimilar to or exactly conesponding with thatshown in Fig. 1 can be formed fromone plate as shown in Fig. 2, one end 9 of the, corrugations being arrangedvertically' for the reception of a right-angled anglepiece f, while the other end 72, of the 7 corrugations is left horizontal; as shown.

V In the sections forming deep decking, which are usually of heavier construction, each section is formed in more than one part. According to Fig. 3,-a section of a shape so shown in .Fig. 1 isformed in two parts the flat'bottom for table a having two sloping. webs or sides-b but one of these sides is' little more than half the length of the other as a joint dis formed at the centre or neutral axis m, n-of the decking and the upper part of the section as shown by the horizontal portion or flat. top or table 0' has a depending sloping.

side or web *6 adapted to be riveted, bolted.

or welded to the shorter length of side or web b at the neutral axisjoint 03. Such: parts of sections can as readily be packed together-fortransportation as the complete sections shown in-Fig. 1 andif thetwo parts forming each section are riveted, bolted or welded together beforebeing placed in position to form the decking. all the riveting, bolting or welding for fastening, the sections together can be carried-outfrom the .upper surface of the decking as .the. erection thereof ,proceeds. 10.9

This provision of bolting, riveting or welding together of the sections from the upper surface of the decking is rendered practicable by means of the right-angled angle pieces f as will be readily understood by referring to any figures of the drawings.

It will be seen that by shaping the trough section substantially as shown, packing facilities are made easy and each section can be formed in two or more parts if desired. Also, a number of sections can be riveted, bolted or welded together at the works or elsewhere before being packed for transportation;

Further, for very light decking a number of corrugations could be formed in one plate as previously described and as shown in Fig,

2 of the drawings and yet retain the advent tage of being fitted within each other for packing and transporting operations, and, finally, reinforcements of the plates for special purposes can be readily accomplished by the attachment of plates is as shown in Fig. 4 of the accompanying drawings.

This application is a division of my copendingapplication Serial No. 316,848;

lVhat I claim is 7 1. A metal decking comprising a number of trough sections each having oppositely inclined webs terminating at one end of the section in a vertical portion and at the other end in a horizontal portion, said horizontal portion overhanging the vertical portion. of a contiguous section, and right-angled angle pieces secured to the inner side of the vertical portions and to the overhanging horizontal. portions o1 contiguous sections.

2. A metal decking comprising a. number of trough sections each having oppositely inclined webs terminating at one end of the section in a vertical portion and at the other end in a horizontal portion, said horizontal portion overhanging the vertical portion of a contiguous section, and rightangle'd anglepieces secured to the inner side of the verti.-- cal portions and to the overhanging horizontal portions of contiguous sections, said sections being formed in parts secured together at joints lying on the neutral axis,

3. A metal trough decking section having oppositely inclined webs one of which tenninates in a vertical portion and the other in a horizontal portion of said section, said horizontal. portion being of such extent as to over han the vertical portion of a contiguous section, the said vertical portion being adapted to receive on its inner side a right-angled angle piece for connection with the overhanging horizontal portion of a contiguous section.

l. A metal trough'decking section having oppositely inclined webs formed in. parts secured together at joints lying onthe neutral axis one of which webs terminates in a vertical portion and the other'in a horizontal portion of said section, said horizontal portion being of such extent as to overhang the vertical portion of a contiguous section, the said vertical portion being adapted to receive on its inner side a ri ht-angled angle piece for connection with tie overhanging horizontal portion of a contiguous section.

5. A metal trough decking section having oppositely inclined webs of which one tenninates in a vertical portion and the other in a horizontal portion of said section, said horizontal portion being of such an extent as to overhang,- the vertical portion of a contiguoussection, the said. vertical portion being provided on its inner side With a right-angled angle: piece for connection with the overhanging horizontal portion of a contiguous section.

6 A metal trough decking section. having oppositely inclined webs, oi which one terminates in a vertical portion. and the other in a horizontal. portion oi said; section, said last mentioned web being jointed along the neutral axis, said horizontal portion being of such extent as to overhang the vertical portion of a contiguous section, and said. vertical portion being adapted'to receive on its inner side' a right-angled angle piece for connection with the overhanging horizontal portion of a contiguous section.

7. Ametal deckingconiprising a number of trough sections each having inclined webs, terminal vertical portions and terminal horizon-tal portions overhanging terminal vertical portions oi contiguous sections in combination with right angled anglepieces secured to the inner side oi the vertical portions and to the overhanging horizontal portions.-

8, A metal trough decking section accord ing to claim 3 including st'ifieners applied to said section,

9; A metal decking according to claim 1 including stifizencrs applied to said sections. 10. A metal trough decking section according to claim lincluding stiil'encrs applied to said section at the portion thereof between the inclined Webs, and at the said horizontal, portion where it adjoins its said web.

In witness whereof I have signed this speciflea-tion.

ARTHUR WILLIAM RAMMAGE'. 

